It may be somewhat tricky to add minced garlic to your tuna steak, and there's the possibility ... while cooking so that it flavors the oil or butter that's coating your fish.

Tuna steaks aren't cheap ... Before you cook your tuna, you can melt some butter (plus garlic and any herbs you might like) ...

cut into 1 1⁄2-by-1 1⁄2-by-4-inch rectangular blocks (the tuna should be as free of sinew as possible) Preheat oven to 300 degrees. Season garlic with salt, wrap in aluminum foil with butter ...